September 2nd, 2019 marks the beginning of the Ultra Bonuses unlocked during Professor Willow’s Global Challenge 2019!
Players participating in GO Fest Chicago, Dortmund, and Yokohama completed enough Research Tasks to receive bonuses for three weeks in September.
From September 9th to September 16th, 2019, Gen 1 regionals will be available in 7km eggs, with their shiny forms unlocked. Deoxys will be in raids with every form available. Lower tier raids will include Deoxys counters. This bonus week is titled Global Challenge, Global Hatches.
From September 16th to the 23rd, Gen 5 arrives to Pokemon GO! Gen 5 Pokemon will be made available in the wild and possibly in raids, and shiny Klink, Patrat, and Lillipup will be discoverable. Psystrike Mewtwo will be in legendary raids with its shiny form available. This bonus week is titled Unova Unveiling.